feels pointless. Isn't that what a "blowjob" or "cunnilingus" usually is? Sometimes you get 69 or other situations where both characters are being stimulated, but for a lot of foreplay it happens one-sidedly
maybe you want to apply it to the whole work, which would almost certainly imply there's no sex. Unless you're trying to include situations where one character doesn't seem to be enjoying it as much as the other (which I guess would be a bit different from "emotionless sex", but then again it wouldn't feel "one-sided" either)
this tag needs a lot of work or should just be rejected